Lithium metal electrode with increased air stability and robust solid electrolyte interphase realized by silane coupling agent modification

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dc.contributor.authorWang, Y.
dc.contributor.authorWang, Z.
dc.contributor.authorZhao, L.
dc.contributor.authorFan, Q.
dc.contributor.authorZeng, X.
dc.contributor.authorLiu, S.
dc.contributor.authorPang, W.K.
dc.contributor.authorHe, Y.B.
dc.contributor.authorGuo, Z.
dc.date.issued2021
dc.description.abstractThe quality of the solid electrolyte interphase (SEI) layer is the decisive factor for the electrochemical performance of Li-metal-based batteries. Due to the absence of effective bonding, a natural SEI layer may exfoliate from the Li anode during interfacial fluctuations. Here, a silane coupling agent is introduced to serve as an adhesion promoter to bridge these two dissimilar materials via both chemical bonding and physical intertwining effects. Its inorganic reactive groups can combine with the Li substrate by forming LiOSi bonds, while organic functional groups can take part in the formation of the SEI layer and thereby bond with SEI components. Li metal electrodes with silane coupling agent modification exhibit excellent electrochemical performance, even under extreme testing conditions. This modification layer with dense structure could also protect the Li metal from corrosion by air, evidenced by the comparable electrochemical activity of the modified Li metal electrodes even after being exposed in air for 2 h. This design provides a promising pathway for the development of Li metal electrodes that will be stable both in electrolyte and in air.
dc.description.statementofresponsibilityYanyan Wang, Zhijie Wang, Liang Zhao, Qining Fan, Xiaohui Zeng, Sailin Liu ... et al.
dc.identifier.citationAdvanced Materials, 2021; 33(14):2008133-1-2008133-9
dc.identifier.doi10.1002/adma.202008133
dc.identifier.issn0935-9648
dc.identifier.issn1521-4095
dc.identifier.orcidWang, Y. [0000-0003-3236-1516]
dc.identifier.orcidWang, Z. [0000-0002-4745-7548]
dc.identifier.orcidLiu, S. [0000-0003-0025-998X]
dc.identifier.orcidGuo, Z. [0000-0003-3464-5301]
dc.identifier.urihttp://hdl.handle.net/2440/130526
dc.language.isoen
dc.publisherWiley
dc.relation.granthttp://purl.org/au-research/grants/arc/LP160101629
dc.relation.granthttp://purl.org/au-research/grants/arc/LE120100104
dc.relation.granthttp://purl.org/au-research/grants/arc/DP200101862
dc.relation.granthttp://purl.org/au-research/grants/arc/DP210101486
dc.relation.granthttp://purl.org/au-research/grants/arc/LE180100141
dc.rights© Wiley-VCH GmbH
dc.source.urihttps://doi.org/10.1002/adma.202008133
dc.subjectair-stable Li metal electrodes
dc.subjectdendrite free anodes
dc.subjectsilane coupling agents
dc.subjectsolid electrolyte interphase reinforcement
dc.titleLithium metal electrode with increased air stability and robust solid electrolyte interphase realized by silane coupling agent modification
dc.typeJournal article
pubs.publication-statusPublished

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